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Incompressible Navier-Stokes Simulation Procedure for a Wingtip Vortex Flow AnalysisThe pacing items to reach the highly desirable goal of obtaining computationally accurate flow simulation of a wingtip vortex include; super-computer development, solver accuracy, grid generation and turbulence modeling. In these four areas, many advances have been made but the fact remains that most wing computations are, at best, five percent accurate (in drag coefficient, for example). This level of accuracy has been sufficient for many purposes such as airfoil design, rudimentary wing design, and some forms of optimization. However, this accuracy level will not allow commercial aircraft designers to extract the remaining few percent of efficiency theoretically possible for conventional aircraft configurations. Thus further research is needed, particularly in the areas of solver development and turbulence modeling, to advance the state of the art of viscous computational techniques as applied to problems in aerodynamics. During the course of this study, a substantial amount of measured and computed results have been acquired. In this paper, only a small selection of experimental and computational results will be presented. This paper will outline and discuss a simulation procedure for a wingtip vortex flow analysis using the method of artificial compressibility to solve the three-dimensional, incompressible, Navier-Stokes equations (INS3D-UP).
Document ID
20020034909
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Authors
Dacles-Mariani, Jennifer
(California Univ. Davis, CA United States)
Kwak, Dochan
(NASA Ames Research Center Moffett Field, CA United States)
Zilliac, Greg
(NASA Ames Research Center Moffett Field, CA United States)
Date Acquired
August 20, 2013
Publication Date
January 1, 1995
Subject Category
Fluid Mechanics And Thermodynamics
Meeting Information
Meeting: Sixth International Symposium on Computational Fluid Dynamics
Location: Lake Tahoe, NV
Country: United States
Start Date: September 4, 1995
End Date: September 8, 1995
Funding Number(s)
CONTRACT_GRANT: NCC2-873
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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